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Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringMiscellaneousEasy2 minPYQ_2021

PhysicsEasysingle choice

A sonometer wire of length $25 cm$ vibrates in unison with a tuning fork. When its length in decreased by $1 cm, 6$ beats are heard per second. What is the frequency of the tuning fork?

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Answer:

Solution:

When length decrease, the frequency of wire will increase. If $n$ is the frequency of the tuning fork, then we have $n \times 25 = (n + 6) \times 24 ∴ n = 144 Hz$

Stream:MHT_CETSubject:PhysicsTopic:Wave on StringSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2021

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